MRI: Acquisition of a Xeuss 3.0 with Genix 3D Small-Angle X-ray Scattering Instrument

MRI：使用 Genix 3D 小角度 X 射线散射仪采集 Xeuss 3.0

• 批准号: 2117657
• 负责人: Ying Meng
• 金额: $ 50.42万
• 依托单位: University of California-San Diego
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-10-01 至 2024-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2117657&HistoricalAwards=false
• 关键词: MRI; Acquisition; Xeuss; 3.0; Genix

This Major Research Instrumentation Award is for a 3D Small-Angle and Wide-Angle X-ray Scattering (SAXS/WAXS) instrument, located in a shared nano/microfabrication and materials analysis facility at UC San Diego. As an essential analytical tool, this advanced SAXS/WAXS instrument supports the ongoing research of a broad cross-section of researchers, enabling discoveries in synthetic chemistry, catalysis, inorganic and biological materials, quantum materials, and energy storage/conversion materials. The instrument provides a versatile, state-of-the-art, reliable and local solution to the SAXS needs of the large scientific community in the Southern California region comprising San Diego and Orange Counties. In addition, the SAXS/WAXS instrument is used to enrich the training of both graduate and undergraduate students in the theory, synthesis, and analysis of nano- and microstructured materials. It allows instructors to use modern research data for pedagogical purposes, provides students with hands-on x-ray training to enhance their science, engineering, and technology curriculum, and augments the educational outreach programs at UC San Diego, bringing a significant opportunity to increase participation of underrepresented students in research.Small-Angle and Wide-Angle X-ray Scattering (SAXS/WAXS) is one of the few experimental techniques that can characterize the nano- and microstructure of soft matter and nanomaterials. It is an essential analytical tool in the characterization of mesoscale and nanoscale features in a wide range of biological and artificial materials. The instrument enables measurement in a dynamic environment (with in-situ control of temperature, humidity, and ambient gas concentration) to provide insights into materials structure-function and structure-response relationships. Unique features of the instrument include automated simultaneous SAXS and WAXS measurements, grazing incidence measurements on liquid interfaces, and low-volume flow-through sampling of biomacromolecules. These features are also appropriate for studies of: (i) short-lived species; (ii) degradation-prone biological samples; (iii) air-, temperature-, or water-sensitive materials; and (iv) materials systems that require frequent or long-timescale x-ray measurements. The instrument also features a doubly focused point source, which allows for collecting scattering data from both isotropic and anisotropic samples because a scattering image can be generated from the entire projected source. The instrument is used to solve transformational materials science problems in the areas of mesomaterials, inorganic, and biological materials, quantum materials, and energy storage/conversion materials.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该主要研究仪器奖用于3D小角度和广角x射线散射（SAXS/WAXS）仪器，该仪器位于加州大学圣地亚哥分校的共享纳米/微加工和材料分析设施中。作为一种重要的分析工具，这种先进的SAXS/WAXS仪器支持广泛的研究人员正在进行的研究，使合成化学，催化，无机和生物材料，量子材料和能量存储/转换材料的发现成为可能。该仪器为包括圣地亚哥和奥兰治县在内的南加州地区的大型科学界的SAXS需求提供了一种多功能，最先进，可靠和本地的解决方案。此外，SAXS/WAXS仪器用于丰富研究生和本科生在纳米和微结构材料的理论，合成和分析方面的培训。它允许教师将现代研究数据用于教学目的，为学生提供实践x射线培训，以增强他们的科学，工程和技术课程，并增加加州大学圣地亚哥分校的教育推广计划，为增加代表性不足的学生参与研究提供了重要机会。小角和广角x射线散射（SAXS/WAXS）是为数不多的能够表征软物质和纳米材料纳米和微观结构的实验技术之一。它是表征各种生物和人工材料中尺度和纳米尺度特征的重要分析工具。该仪器能够在动态环境中进行测量（具有温度，湿度和环境气体浓度的原位控制），以提供对材料结构-功能和结构-响应关系的见解。该仪器的独特功能包括自动同步SAXS和WAXS测量，液体界面上的掠入射测量，以及生物大分子的小体积流动取样。这些特征也适用于以下研究：(i)短命物种；易降解的生物样本；（iii）对空气、温度或水敏感的材料；（iv）需要频繁或长时间x射线测量的材料系统。该仪器还具有双聚焦点源，允许从各向同性和各向异性样品收集散射数据，因为散射图像可以从整个投影源生成。该仪器用于解决中材料、无机和生物材料、量子材料和能量存储/转换材料等领域的转型材料科学问题。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。